Improvement in apparatus for removing oils, grease, gums, and the like



J. W. KREPPS. 7 APPARATUS FOR REMOVING OILS, GREASE, GUMS, 'AND THE LIKE FROM COTTON AND WOOLEN WASTE AND REOOVERING THE SAME.

Patented Apr. 19, 1870.

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amt fitters JAMES WILLIAM KREPPS, OF CHICAGO, ILLINOIS.

Letters Patent No. 102,018, dated April 19, 1870.

IMPROVEMENT IN APPARATUS FOR REMOVING OILS, GREASE, GUMS, AND THE LIKE, PROM COTTON AND WOOLEN WASTE, AND RECOVERING- THE SAME.

The Schedule referred to in these Letters Patent and making part of the some I, JAMES VILLILM KRErPs, of the city of Ohicago, county of Cook and State of Illinois, have invented certain new and useful Improvements in Apparatus for Removing Oils, Grease, Gums, &c., from Cotton and WVoolen Waste, and Recovering the Same, the following being a specification.

My improvements consist in the employment of a revolving or rocking cylinder; in thecombination of the cylinder with the internal perforated and relatively stationary receptacle, and the compressing device; also, in the said rotating cylinder in combination with the still and the condensing and receiving-tank, substantially as hereinafter described.

In connection with my improved apparatus I employ hydrocarbons, or other solvents of oil, for the purpose of dissolving the, oily and gummy substances contained in the waste material, and separating them therefrom.

In the accompanying drawings- Figure 1 is a central vertical section of my improved apparatus.-

Figure 2, a cross-section of the rotating cylinder.

Figure 3, a side elevation of the rotating cylinder, in the frame, in position for revolving or rocking in the direction of the circle of its circumference.

Like letters of reference indicate corresponding parts in all figures.

A indicates the rotating cylinder, which is made steam-tight, or nearly so, having axles or bearings, b c, at the top and bottom, that rest loosely in the revolving frame B.

The said frame B is provided upon opposite sides with journals or hearings, to a, which rest and turn in the stationary supporting-frame on standards 0 O.

I provide, inside of the rotating cylinder A, an internal perforated and relatively stationary receptacle, D, in which is placed the cotton or woolen waste E, or other fibrous or textile material, from which it is desired to remove and recover any oily or greasy substance contained therein.

On both ends of the receptacle D I provide flanges, 11 d, which project out against the inside surface of the cylinder A, so as to properly center the former therein,-and have an annular space or chamber, 6, between. Into this chamber the oils, grease, 850., are allowed to escape, through the perforations, when the material E is compressed, as will be hereinafter dc.- scribed.

In the side of the cylinder A and receptacle D, I provide a man-hole, F, through which the waste material is inserted and removed.

A plate, 9, rests over the man-hole, on the outside, and is clamped in place by meansof a clamp-screw, f, that passes through a nut in the bearing 71-.

The opening through the receptacle D is covered so as to retain the'matcrial inside, by means of a sliding plate, 7;, that rests and slides in grooves formed by the lips i i, which project over its edges.

In the receptacle D I secure radial wings or ledges Z Z extending longitudinally through the same, so that, when the cylinderis being revolved upon its axle b c in the direction of the circle of its circumference, the material E catches upon the wings, and is carried part way'around upon them, when it slides off and falls to the bottom. By this means the necessary agitation is produced for thoroughly saturating the fibers with the hydrocarbons, or other solvents of oil, that are employed for dissolving the oily or gummy substances adhering to the waste material, and separating it therefrom.

Inside the receptacle D is situated a perforated compressing-plate or diaphragm, H, which is adjustable to different positions therein, to give space for the agitation of the. material, or to compress the same, by means of the screw-rod I, which turns in a nut, in, and is provided with hand-rests or levers, a a.

K indicates the still.

L, the receiving and comlensing-tank, for the reception of the hydrocarbons, or other solvents of oil, employed in my apparatus.

The process for removing and recovering the oils, grease, 850., from the waste material, with my improved apparatus, is as follows 4 A sufficient quantity of the waste material is placed in the receptacle D, through the man-hole I and the cylinder is closed steam-tight. A supply of hydrocarbons, or other solvents of oil, is then admitted into the receiving-tank L, through the cock 0, and a quantity is drawn off through the cooks p w, and a temporary connecting-pipe to the cylinder A, which is filled up to the gauge-cock q'. The diaphragm H is drawn up to one end, as shown in fig. 1, by turning the screw-rod I, so as to allow the entire room in the receptacle for the agitation vvof the material contained therein. This being done, the frame B, bearing the cylinder A, is revolved part way around, s0 as to rest in the horizontal position shown in fig. 3, and a' revolving or rocking motion, in the direction of the circle-of its circumference is imparted to the cylinder. Portions of the material E, catching upon the radial wings I l l, are carried nearly half over by the motion of the cylinder at each successive revolution, and then drops off, producing the required agitation for thoroughly saturating the fibers.

The hydrocarbons, 01' solvents, and the ingredients separated from the waste material by this process, are then drawn off, through the cook a and tunnel s, into the still K. Pressure is then applied noon the material by turning down upon the screw rod 1, so as to compress the diaphragm H firmly upon it. The greater portion of the liquid remaining in the fibers will be pressed out, through the perforated sides of tlie receptacle D, into the chamber 8, thence it flows off into the still.

This process is repeated until the oily and gummy substances in the waste material are thoroughly dissolved aud separated from the fibers. A temporary connecting-pipe is then applied, so as to connect the top of the cylinder A with the top of the condensingtank L, and a jet of steam is admitted into the cylinder A at the bottom. By this means the material E is purged of the hydrocarbons, or solvents of oil used, still remaining, and the vapor is driven back into the condenser through the said temporary connecting pipe.

Steam or hot air is admitted into the coiled pipe t t, by which means the hydrocarbons or solvents of oil are heated, and the distilled port-ions pass off in vapor, through the pipe '11, into the condensing and receiving-tank L, to be used over again.

A coiled pipe, 1', containing cold water, is employed for condensing the vapor in the condensing-tank L.

The oily and gummy material dissolved by the hydrocarbons, or other solvents used, remains at the bottom of the still K after the hydrocarbons or solvents have been distilled over. This oily or gummy substance is then drawn off through the cock to herefined for use again.

In order that the waste material E may be preserved for further use, I admit water and the necessary ingredients for cleansingit, and a thorough agitation is imparted. The water is then drawn off, and the ma- Claims.

-1. The cleansing of cotton or woolen waste, by imi'nersing the same in hydrocarbons, or other solvents of oil, in a closed rotating cylinder, accompanied with agitation to facilitate the process of cleansing, substan tially as above described.

2. Further cleansing the same material, after the oils, grease, 85c, have been nearly removed by the aforesaid solvents, by washing it in the same closed rotatin g cylinder, accompanied with agitation, substantially as above described.

3. The rotating cylinder A, provided with the internal perforated and relatively stationarv receptacle D, substantially as set forth.

4. The adjustable diaphragm H and wings I Z Z, in combination with the rotating cylinderA and internal receptacle D, substantially as herein set forth.

5. The rotating cylinder A, resting in the adjustable or tilting frame 13, substantially as and for the purpose herein set forth.

(5. The combination of the rotating cylinder A, per forated internal receptacle 1), adjustablediaphragm H, and wings ll 1, with the still K and condensing and receiving-tank L, substantially as and for the purpose herein set forth.

JAS. WM. KREPPS.

Witnesses:

Ones. SEYMOUR, ROBERT F. LESTER. 

